The Santa Cruz Church, also known as Wat Kudee Jeen, is a Roman Catholic church located along the Chao Phraya River in the Kudee Jeen alley, near the Arunamarin 4 intersection (along Thetsaban Sai 1 road), in the Wat Kalayan neighborhood of Thonburi, Bangkok. This church building is the third structure built to replace the previous one that had become cramped and dilapidated. Construction was overseen by Father Giulielmo Ginn da Cruz in 1916, during the reign of King Rama VI. It underwent significant renovations in 1996, initiated by Father Suwong Surasrang, focusing on preservation efforts. Today, this church building stands proudly with a history spanning 103 years.